Cutting jig without burrs and cracked edges

Abstract

The utility model discloses a cutting jig without burrs and cracked edges, and relates to the technical field of cutting jigs. The cutting jig free of the burrs and the cracked edges comprises a bottom plate, a tool bit assembly and a downward pressing assembly, two sets of scaleplates are fixedly installed at the top of the bottom plate and are symmetrically arranged, and two sets of installation openings are formed in the top of the bottom plate in a front-back mode; the tool bit assembly is arranged on the bottom plate. According to the cutting jig without burrs and cracked edges, through cooperative use of the tool bit assembly and the downward pressing assembly, a welding strip is cut under the condition of complete pressing, no chance is generated when the welding strip is pressed, poor quality or waste caused by cracks is reduced, through cooperative use of a limiting opening, a die opening and a ruler, the welding strip can be rapidly and accurately cut, and the production efficiency is improved. The cutting fracture is tidy, the cutting angle is stable, and the cutting is horizontal and vertical, so that the processing of the subsequent process is facilitated, the cutting is completed in one step, the time consumed by multiple times of cutting-up in the previous thick strip cutting is reduced, and the cutting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting jigs, in particular to a cutting jig without burrs or cracks on the edges. Background Art

[0002] In the daily production process of solder strips, the solder strips need to be cut into small pieces of fixed length, generally cut into a length of 100-160mm, to facilitate the processing of subsequent processes. The conventional cutting method is to use a blade to cut or scissors to trim, but both methods have certain disadvantages. First, cracks will occur. Au80Sn20 solder is relatively brittle. When cutting with a blade and scissors, the material will crack from the edge of the cut. The length of the crack is related to the thickness of the solder and the sharpness of the blade; the thicker the material, the longer the crack, and the duller the blade, the longer the crack. Second, the blade and scissors are easy to cut crooked, and the cut pieces are sometimes not square, but trapezoidal or parallelogram.

[0003] To address the above problems, we propose a cutting fixture with no burrs or cracks. Utility Model Content

[0004] The utility model aims to provide a cutting tool without burrs or cracks, which can solve the problem that cracks may be generated on the edges of the materials when cutting with blades and scissors.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a cutting jig without burrs or cracks, comprising:

[0006] The bottom plate has two sets of scales fixedly mounted on the top of the bottom plate and arranged symmetrically, and two sets of mounting openings arranged front and back are opened on the top of the bottom plate;

[0007] The cutter head assembly is arranged on the bottom plate, and the cutter head assembly includes a top plate, a punch, an upper plate, a pressure plate, a guide column and a return spring. One end of the guide column is fixedly connected with a mounting round block, and the mounting round block is fixedly installed at the inner bottom of the mounting opening. One end of the return spring is fixedly installed at the inner bottom of the mounting opening, and the return spring wraps the guide column inside. The top plate, the upper plate and the pressure plate are all provided with limiting holes for the guide column to pass through. The guide column sequentially passes through three groups of limiting holes and extends to the top of the top plate and is installed with locking bolts. The end of the return spring away from the column is fixedly connected to the bottom of the pressure plate. The top plate and the upper plate are both provided with two groups of diagonally arranged fixing holes, and fixing bolts are arranged in the fixing holes. The upper plate is provided with a strip opening, and a punch is fixedly installed in the strip opening. The top plate and the upper plate are both provided with two groups of diagonally arranged mounting holes, and equal height sleeves are installed at the mounting holes.

[0008] The pressing assembly is arranged on the column and is used for pressing down the cutter head assembly.

[0009] Preferably, the pressing assembly includes a column and a pressing cross bar, the column is fixedly installed on the top of the base plate, an adjustment slot is opened on the top of the column, the pressing cross bar is rotatably installed in the adjustment slot, and a handle is fixedly connected to the end of the pressing cross bar away from the column, and the pressing cross bar can contact the top plate.

[0010] Preferably, two groups of diagonally arranged height limit blocks are fixedly installed on the top of the pressing plate, and two groups of diagonally arranged high-strength rubber are fixedly installed on the top of the pressing plate. One end of the equal height sleeve extends to the bottom of the upper plate and is fixedly connected to the inner wall of the high-strength rubber.

[0011] Preferably, the pressing plate is provided with a limiting opening for allowing the punch to move longitudinally.

[0012] Preferably, a die opening is provided on the top of the bottom plate, and the die opening is arranged in parallel with the limiting opening.

[0013] Preferably, a welding strip is placed on the bottom plate, the welding strip is located at the front side of the ruler and in contact with it, and the welding strip is located above the die opening and in contact with it.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The burr-free and crack-free cutting jig, through the coordinated use of the cutter head assembly and the pressing assembly, can cut the welding strip when it is completely pressed. There is no chance of cracking when the welding strip is pressed, thus reducing poor quality or waste caused by cracks. The coordinated use of the limit port, the die port and the ruler can quickly and accurately cut the welding strip, and the cut ends are neat, and the cut angles are stable, horizontal and vertical, which is convenient for the subsequent processing. The cutting is completed in one step, which reduces the time consumed by multiple cuts required for cutting thick strips in the past, and improves the slitting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0017] Figure 1 It is an exploded view of the utility model;

[0018] Figure 2 It is a three-dimensional diagram of the utility model;

[0019] Figure 3 It is a top view of the bottom plate of the utility model;

[0020] Figure 4 for Figure 3 AA section view.

[0021] Figure numerals: 1. column; 2. downward pressure bar; 3. top plate; 4. locking bolt; 5. punch; 6. equal height sleeve; 7. fixing bolt; 8. upper plate; 9. limit opening; 10. pressure plate; 11. height limit block; 12. Glue; 13. bottom plate; 14. guide column; 15. return spring; 16. ruler; 17. die opening; 18. welding strip. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] See also Figure 1-4 The utility model provides a technical solution: a cutting jig without burrs or cracks, comprising a bottom plate 13, a cutter head assembly and a pressing assembly, two sets of scales 16 are fixedly installed on the top of the bottom plate 13 and are symmetrically arranged, and two sets of mounting openings arranged front and back are opened on the top of the bottom plate 13; the cutter head assembly is arranged on the bottom plate 13, and the cutter head assembly comprises a top plate 3, a punch 5, an upper plate 8, a pressing plate 10, a guide column 14 and a return spring 15, one end of the guide column 14 is fixedly connected with a mounting round block, the mounting round block is fixedly installed at the inner bottom of the mounting opening, one end of the return spring 15 is fixedly installed at the inner bottom of the mounting opening, and the return spring 15 wraps the guide column 14 inside, and the top plate 3, the upper plate 8 and the pressing plate 10 are all provided with a guide column 14 The guide column 14 passes through the limiting holes in sequence, extends to the top of the top plate 3 and is installed with a locking bolt 4, and the end of the return spring 15 away from the column 1 is fixedly connected to the bottom of the pressure plate 10, and two groups of diagonally arranged fixing holes are provided on the top plate 3 and the upper plate 8, and fixing bolts 7 are provided in the fixing holes. A strip opening is provided on the upper plate 8, and a punch 5 is fixedly installed in the strip opening. Two groups of diagonally arranged mounting holes are provided on the top plate 3 and the upper plate 8, and an equal height sleeve 6 is installed at the mounting hole. In the free state, the return spring 15 stretches the pressure plate 10 and the bottom plate 13 by 30 mm, which facilitates the welding strip 18 to pass through the middle of the pressure plate 10 and the bottom plate 13; the pressing assembly is provided on the column 1, and is used to press down the tool head assembly.

[0024] The pressing assembly includes a column 1 and a pressing cross bar 2. The column 1 is fixedly installed on the top of the base plate 13. An adjustment slot is provided at the top of the column 1. The pressing cross bar 2 is rotatably installed in the adjustment slot. A handle is fixedly connected to the end of the pressing cross bar 2 away from the column 1, and the pressing cross bar 2 can contact the top plate 3.

[0025] Two groups of diagonally arranged height limit blocks 11 are fixedly installed on the top of the pressing plate 10 to ensure that the pressing process is limited, so that the punch only extends out of the pressing plate 0.8mm to avoid extending too much and bending the welding strip. Two groups of diagonally arranged high-strength glue 12 are fixedly installed on the top of the pressing plate 10. One end of the contour sleeve 6 extends to the bottom of the upper plate 8 and is fixedly connected to the inner wall of the high-strength glue 12. Through the coordinated use of the cutter head assembly and the pressing assembly, the welding strip 18 is cut when it is completely pressed. There is no chance of cracks when the welding strip 18 is pressed, reducing poor quality or waste caused by cracks.

[0026] The pressing plate 10 is provided with a limiting opening 9 for the punch 5 to move longitudinally.

[0027] A die opening 17 is provided on the top of the bottom plate 13 , and the die opening 17 is arranged parallel to the limiting opening 9 .

[0028] A welding strip 18 is placed on the bottom plate 13. The welding strip 18 is located on the front side of the ruler 16 and is in contact with it. The ruler 16 is provided with a scale, and the zero point of the scale is at the die 17 of the bottom plate 13. The ruler 16 and the die 17 are at a vertical angle, so as to ensure that when the long side of the welding strip 18 is against the edge of the ruler 16, the cutting line and the welding strip 18 are at a vertical angle, and the cut pieces are all rectangular. The welding strip 18 is located above the die 17 and is in contact with it. Through the coordinated use of the limit port 9, the die 17 and the ruler 16, the welding strip can be cut quickly and accurately, the cutting fracture is neat, and the cutting angle is stable, horizontal and vertical, which is convenient for the processing of the subsequent process, and the cutting is completed in one step, which reduces the time consumed by multiple cutting required for thick strip cutting in the past, and improves the slitting efficiency.

[0029] Working principle: Pass the welding ribbon 18 between the bottom plate 13 and the pressing plate 10, push the welding ribbon 18 forward, align it with the ruler 16, move the welding ribbon 18 left and right, align the end of the welding ribbon 18 with the scale of the required size, then press the handle down with your hand, the handle drives the downward pressing cross bar 2 downward and transfers the air to the top plate 3, press the pressing plate 10, the upper plate 8, and the top plate 3 downward as a whole, when the pressing plate 10 contacts the welding ribbon 18, continue to press downward to compress the rubber 12, so that the welding ribbon 18 is compacted between the pressing plate 10 and the bottom plate 13, and at the same time the punch 5 Continue to go down, extend the pressing plate 10, extend it into the die opening 17 of the bottom plate 13, cut the welding strip 18, and continue to press down. Since there are two sets of height limit blocks 11 between the pressing plate 10 and the upper plate 8, the amount of pressing is limited, and the punch will only extend about 1 mm and will not extend too much into the die opening 17, resulting in bending of the end of the welding strip 18. At this time, release the handle, and the return spring 15 between the pressing plate 10 and the bottom plate 13 will pop open. The pressing plate 10 slides upward under force and returns to a free state. Take out the cut pieces and get the pieces we need.

[0030] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A cutting jig without burrs or cracks, characterized in that: include: A bottom plate (13), two sets of scales (16) are fixedly mounted on the top of the bottom plate (13) and are symmetrically arranged, and two sets of mounting openings are opened on the top of the bottom plate (13) and are arranged front and back; The cutter head assembly is arranged on the bottom plate (13), and the cutter head assembly includes a top plate (3), a punch (5), an upper plate (8), a pressure plate (10), a guide column (14) and a return spring (15). One end of the guide column (14) is fixedly connected with a mounting round block, and the mounting round block is fixedly installed at the inner bottom of the mounting opening. One end of the return spring (15) is fixedly installed at the inner bottom of the mounting opening. The return spring (15) wraps the guide column (14) inside. The top plate (3), the upper plate (8) and the pressure plate (10) are all provided with a limiting hole for the guide column (14) to pass through. The column (14) sequentially passes through the three groups of limiting holes and extends to the top of the top plate (3) and is installed with a locking bolt (4). The end of the return spring (15) away from the column (1) is fixedly connected to the bottom of the pressure plate (10). The top plate (3) and the upper plate (8) are each provided with two groups of diagonally arranged fixing holes, and fixing bolts (7) are arranged in the fixing holes. The upper plate (8) is provided with a strip opening, and a punch (5) is fixedly installed in the strip opening. The top plate (3) and the upper plate (8) are each provided with two groups of diagonally arranged mounting holes, and equal height sleeves (6) are installed at the mounting holes. The pressing assembly is arranged on the column (1) and is used to press down the cutter head assembly.

2. A cutting jig without burrs or cracks according to claim 1, characterized in that: The pressing assembly comprises a column (1) and a pressing cross bar (2), wherein the column (1) is fixedly mounted on the top of a bottom plate (13), an adjusting slot is provided at the top of the column (1), the pressing cross bar (2) is rotatably mounted at the adjusting slot, an end of the pressing cross bar (2) away from the column (1) is fixedly connected to a handle, and the pressing cross bar (2) can contact the top plate (3).

3. A cutting tool without burrs or cracks according to claim 2, characterized in that: Two groups of height limiting blocks (11) arranged diagonally are fixedly installed on the top of the pressing plate (10), and two groups of diagonally arranged high-strength rubber (12) are fixedly installed on the top of the pressing plate (10). One end of the equal height sleeve (6) extends to the bottom of the upper plate (8) and is fixedly connected to the inner wall of the high-strength rubber (12).

4. The cutting jig without burrs or cracks according to claim 3, characterized in that: The pressing plate (10) is provided with a limiting opening (9) for the punch (5) to move longitudinally.

5. The cutting tool without burrs or cracks according to claim 4, characterized in that: A die opening (17) is provided on the top of the bottom plate (13), and the die opening (17) is arranged in parallel with the limiting opening (9).

6. The cutting jig without burrs or cracks according to claim 5, characterized in that: A welding strip (18) is placed on the bottom plate (13), the welding strip (18) is located on the front side of the scale (16) and in contact with it, and the welding strip (18) is located above the die opening (17) and in contact with it.

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